Dispensing pump for gasoline and the like



Nov. 29, 1932. A. CJSMITH 1,389,455

. DISPENSING PUMP FOR GASOLINE AND THE LIKE Filed May 28. 1930 2 Sheets-Sheet l Nox 29, 1932.} M,TH 1,889,455

DISPENSING PUMP FOR GASOLINE AND THE LIKE Fild May 28. 1950 2 Sheets-Sheet 2 I W W13 \\\\\\\\\\\\\\\\\\& I 1,

Patented Nov. 29, 1932 UNITED STATES PATENT] OEFICE ARTHUR. C. SMITH, OF PASADENA, CALIFORNIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO AUTOMATIC MACHINE PRODUCTS CORR. LTD., OF SOUTH PASADENA, CALIFORNIA,

' 22 upon Fig. 1.

from the A CORPORATION OF NEVADA DISPENSING PUMP FOR GASOLINE AND THE LIKE Application filed May 28.

This invention relates to a gasoline dis-- pensing' and vending pump.

An object of the invention is to provide an improved gasoline dispensing pump having a coin controlled mechanism controlling it. By the improved construction gasoline may 9 sold from the pump without requiring the presence of a service station attendant.

Another object of the invention is to provide an improved gasoline dispensing pump, having a valve controlling the flow of gaso-' line from the pump and a meter which measures the gasoline, with a coin controlled mechanism for opening the valve, which coin controlled mechanism is affected by the meter to shut the valve after a predetermined quantity of gasoline has been dispensed.

A further object of the invention is .to provide a construction which may be applied to any conventional form of gasoline dis: pensing pump, enabling gasoline to be sold pump without requiring the presence of an attendant.

With the foregoing. and other objects in View, which will-be made manifest in the following detailed description and specifically'pointed out in the appended claims, reference is had to the accompanying draw ings for an illustrative embodiment of the' improved pump.

Fig; 2 is a partial view taken upon the line Fig. 3 is a sectional view taken substantially upon the line 33 upon Fig. 2.

Fi 4 is a view taken substantiallyupon tllelln 44 upon Fig. -;3.

Fig. 5 is a view taken upon the line 5-5 upon Fig. 4.

Fig. 6 is a vertical section'taken upon the line 66 upon Fig. 5.

Fig. Tis a partial view, parts shown in section, illustrating a-detail of construction adjacent the meter employed.

Referring to the accompanying drawings, wherein similar reference characters designate similar parts. throughout, the improved gasolin'e dispensing pump comprises a stand-.

and 10 on top of which theremaybe positive inlets 22. These guides serve to guide 1930. Serial No. 456,534.

tioned the conventional glass container 11 which is adapted to be supplied with gasoline from a suitable reservoir, not shown, by any'suitable pumping mechanism, such as for example an air pump, not shown. In the drawings I have illustrated the glass container 11 as being provided with an outlet 12 at its bottom, to which outlet a flexible hose 13 is connected having a nozzle 14 provided with a valve operable by a handle 15. In the outlet 12 there is mounted a valve 16 which can be opened and closed by a crank 17. There is also positioned in the outlet at liquid meter 18 which-maybe of any preferred construction having a rotary part such as a shaft or spindle 19. On the side of the startiiard 10 there is mounted a casing 20 whic incloses the coin controlled mechanism. On one side of the casing or housing 20 there is mounted a, coin detector 21 which has slots formed therein to receive various coins, such as for example a ten cent piece, a twentyfive cent piece, and a fifty centpiece. Inlets to the casing or housing 20 are indicated by the reference character 22 permitting coins to-pass from their respective coin slots in the coin detector 21 into the casing or housing.

A plurality of guides23 are arranged within the casing 20 at the sides of their respecthe vertical movements of slides 24 and 25. 1 Each forward side 24 has a handle 26 which projects outwardly through an opening 27 in the casing 20 immediately below its respective coin slot. It has a coin slot 28 formed therein to receive coins disposed through its respective inlet 22. The rear slide 25 likewise has a coin slot 29 formed therein which will receive the coin and near the bottom of the two slides slots are formed therein enabling the coin to drop out of the slides in sucha position that part of the coin will be disposed in one slide and part of the coin will be disposed in the other slide, as clearly shown in Figure 3. Near the bottom of the rear slide 25 there is pivotally mounted a coin arrester 30, the pivot being indicated at 31. This coin arrester is designed to temporarily arrest the movement of the coin O in the slides in such a position as to cause the coin to lock the slides together. The coin arrester 30 has notches or recesses 32 formed therein capable of being caused to align with similar recesses in the rear slide 25. A latch 33 is pivotally mounted upon the rear slide and has a finger 34 adapted to enter the aligned recesses 32 and lock the coin arrester 30 in the position shown in Figure 3. However, when the latch is swung rearwardly finger 34 will be moved out of the recesses, allowing the coin arrester 30 to freely pivot, thus releasing the coin and allowing the coin to drop from the slides into a coin receptacle 35, having a lock controlled door 36. The forward slide 24 is urged upwardly into its uppermost position by a spring 37 and the rear slide 25 is urged upwardly by a spring 38.

Each rear slide 25 has at its top a rearwardly extending finger 39 which serves as a stop engageable upon a stop 40 on the interior of casing 20 to limit its upward movement. The finger also serves to engage one arm of a pivoted lever 41, the other arm of which is operably connected to an actuating rod 42 which is suitably enclosed, as indicated at 43, and which is pivotally connected to the crank 17 operating the valve. Within the casing there is pivotally mounted an angular latch 44 urged rearwardly by a spring 45 and which has its rear end engageable with the top of slide 25 when the slide 25 is in its uppermost position. The opposed surfaces on the latch 44 and the slide 25 are beveled so that when the slide 25 reaches its uppermost position it will serve to shift the latch 44 forwardly a slight distance. The horizontal arm on the latch 44 is adapted to be engaged by the top of slide 24 to limit the upward movement of the slide. A short dis- 7 tance down on the vertical arm of the latch there is formed a lug 46 which likewise is engageable upon the top of slide 24 to temporarily hold slide 24 down against the action of coil spring 37.

From the above described construction it will be appreciated that on depositing a coin in the coin detector 21 that the coin will drop therethrough through the coin slots 28 and 29 until it reaches the position against the coin a-rrester 30, as shown in Figure The handle 26 can then be depressed and as the coin serves to lock the slides 24 and 25 together, both slides will be forced downwardly against the action of their respective springs. This causes finger 39 to swing lever 41, which causes the actuating rod 42 to open the valve 16. The valve will be kept in open position by virtue of the slides 24 and 25 being held down by the lug 46 engaging the top of slide 24.

With the valve 16 open, gasoline may flow through meter 18 into hose 13 as soon as the valve at the nozzle 14 is opened. When the gasoline flows through the meter 18 it produces rotation of shaft or spindle 19. This shaft carries a ratchet 47 adapted to be engaged by ratchet teeth 48 on a sprocket 49 which is loose on the shaft or spindle 19. The sprocket wheel is urged into engagement with the ratchet 47 by a spring 50 and is inclosed with a suitabl housing orcasing 51. In the bottom of t e casing or housing 20 there is rotatably mounted a cam shaft 52, having cams 53, each of which is difierently positioned in angular relation to the cam shaft. The cams 53 are designed to engage the depending arms on their respective latches 33 and swing the latches rearwardly so that the finger 34 will be lifted or swung out of the aligned recesses 32. A sprocket wheel 54 is keyed upon the cam shaft 52 and a sprocket chain 55 connects sprocket wheel 49 with sprocket wheel 54.

As soon as gasoline flows through the meter 18 shaft or spindle 19 starts rotating, driving the cam shaft 52. Cain shaft 52 is rotated until one of the cams 53 engages the latch 33 on the slide 25 which has been depressed. As soon as this latch is engaged the coin arrester 30 is released andis free to rotate, thus allowin the coin C to drop out of the slides and as t e slides are no longer locked together the rear slide 25 may move into its uppermost position. On reaching its uppermost osition it engages the angular latch 44, causmg this latch to release the forward slide 24 and allow this slide to return to its normal position. The upward movement of slide 25 allows actuating rod 42 to be pulled downward by s ring 55, thus closing valve 16 and stopping urther flow of gasoline until a subsequent coin is deposited in the coin detector 21. By virtue of the fact that the earns 53 have different positions on the cam shaft 52 it will be readily appreciated that the cam associated with the ten cent piece slides is only a short distance from latch 33 in its starting position. The cam associated with the twenty-five cent piece slides is about two 13 and a half times as far away, while the cam associated with the fifty cent piece slides is approximately five times as far away. In this manner by virtue of the positioning of the cams if a ten cent piece is deposited meter 18 can drive the cam shaft 52 only a short distance before the valve is shut off, whereas the meter can drive the cam shaft 52 a greater distance if a coin of greater denomination is deposited in the machine.

As the machine is designed to be used by different customers, some provision must be made for returning the cam shaft 52 to its initial or starting position every time valve 16 is closed. To accomplish this a bell crank 56 is pivotally mounted within casing or hous ing 20'and has one arm connected to actuating rod 42. The other arm is connected to a rack 57 which meshes with a gear 58 loosely mounted on the cam shaft 52. Gear 58 is pro 77 vided with a-pin 59 which extends outwardly toward sproc et wheel '54. In the hub of the sprocket wheel 54 there is a recess in which a spring actuated pawl (SO-is disposed, adapted to be engaged by pin 59. -Whenever the actuating rod 42 is pulled downwardly by the spring 55, due to a cam 53 engaging alatch 33, the rack 57 is pushed forwardly. It will the outside of standard 10. It will be readily be readily appreciated, however, that the cam.

shaft 52 may have been rotated through any of three distances, depending upon whether a ten cent piece, a twenty-five cent piece, or a fift cent piece, had been previously deposite Consequently during the first portion .of the rotational movement of gear 58-, the

movement is merely idle rotation of thegean.

Eventually, however, pin 59 engages pawl 60 and forcibly rotates the cam shaft 52 into its original or starting position. During this rotational movement-of the cam shaft-52 the sprocket chain will rotate sprocket 49 but such rotation will not afi'ect the meter. 18 by virtue of the ratchet connection between sprocket 49 and shaft or spindle 19. In this manner every'time valve 16 is closed by actuating rod 42 the entire apparatus, with the.

exception of the meter 18, will be restored to its initial or sta-rting p'osition so as to receive I a subsequent coin of any desired denomination. I

Thecams 53 are preferably adjustable between collars 61 on which small graduations may be formed so that as the market price of gasoline rises and falls thecams can be adjusted to compensate the machine for the vanations in price. The meter 18 is preferably tibn 111 provided with a suitable counter,n'o't shown;

which will keep an accurate record of the number of gallons of gasolinedispensed by the pump and measured by the meter. This counter serves as an indication of the number of gallons remaining in thesupply reservoir and als o serves to assure the customer that the machine is an accurate machine dispensing the' proper quantity of gasoline for which he has paid. i The, conventional pump to which theattachment is shown as having been applied is ordinarily provided with a 'small trigger which, when depressed, causes: the glass coni tainer 11 to be refilled. The actuating rod 42 is preferably connected to this-trigger so that appreciated, however, that without modifying the'construction in any material extent,

that all of the construction may be inclosed with standard 10.

In some localities local ordinances prohibit gasolinebeing allowed to remain inthe' glass container 11 without an attendant being present at allv times. Where the device is so used,

the valve 16 and meter 18 instead ofbeing mounted on the outlet from the container 11 are mounted on theinlet leading from the pumping mechanism to the container. such event the valve 16 opens to allow container ll to be partially filled and is automati-- enables customers to purchase gasoline without requiring the presence of an attendant.

This feature of the construction is highly'advantageous in that a pump at a service stabe left running allnight after the station as been closed for the day so that a customer desiring to purchase gasoline after the station has been closed by the attendant may do so by depositing acoin in the coin detector, positioning the nozzle 14 in, the tank of his automobile, and opening valve 15.

. Various changes may be made in the details of construction without departing from the spirit or scope of the invention as defined by the a pended claims.

valve, coin controlled means for opening the valve, a meter adapted to be actuated-upon the discharge of gasoline, a camshaft adapted to release the coin controlled means causing the valve to close, means including a ratchet providing-a driving connection between the meter and the cam shaft, and means whenever the valve 16 is closed and the actu-' ating rod 42 returned to its lowermost posiglass container 11, When a glass coptainer is employed the counter on; the meter iseflectively checked by the customer being able to see through the walls of the glass container the exact-quantity-of gasoline whichis allowed to flow through the hose 13 before valve 16 is shut 0fl".-

As illustrated aipon the drawings, nearly 'tion, the trigger will be depressed, filling the all of the mechanism of the improved con, struction is shown as having been mounted on operable upon the closing of the valve for returning the cam shaft to itsinitialposition.

2. A gasoline dispensing pump having a meter, coin. controlled meanscontrolhng flow gasoline dispensing pump having a gasoline dispensing pump is provided which throughthe meter, a cam shaft, means operable by the cam. shaft for stopping flow through the meter when aspredetermmed quantity h as passed, therethrough, means includinga ratchet for driving the cam shaft by the meter, means loose onthe cam shaft adapted to berotated thereon on dls'continuing fiowthrough, the meter, and means engagcable by the loose means for returning.

the cam shaft to its initial position.

; Y 3.7; A} gasoline dispensing pump having a conduit through which gasoline may flow}, a; ne terin the conduit, coin controlled means foncausing gasoline to fioow through the @onduit, a cani'shaft,meansincluding a ratchet for rotating the cam shaft by the meter, means operable by the cam shaft for stopping the flow through the conduit after a predetermined amount measured by the me ter has flowed through, and means for returning the cam shaft to its initial position.

4. A gasoline dispensing pump having a conduit through which gasoline may flow, a meter in the conduit, coin controlled means for causing gasoline to flow through the conduit, a cam shaft, means including a ratchet for rotating the cam shaft bythe meter, means operable by the cam shaft for stopping the flow through the conduit after a predetermined amount measured by the meter has flowed through, and means for returning the cam shaft to'its initial position, the cams on the cam shaft being rotatably adjustable to compensate for different market prices of gasoline.

5. A gasoline dispensing pump having a conduit through which gasoline may flow, means for starting and stopping the flow throughthe conduit, a plurality of coin controlled devices each operable upon deposit of a coin tocause said means to start the flow of gasoline, a meter in the conduit for measuring the flow therethrough, a cam shaft having-a cam for each coin controlled device, means providing a driving connection between the meter and the cam shaft for rotating the cam shaft by the meter, means operable by the cams for causing the coin controlled device utilized to produce a discontinuance of how after a predetermined quantity of gasoline has passed through. and means for returning the cam shaft to its starting position.

6. A gasoline dispensing pump having a conduit through which gasoline may flow, means for starting and stopping the flow through the conduit, a plurality ofcoin controlled devices each operable upon deposit of a coin to cause said means to start the flow of gasoline, a meter in the conduit for measuring the flow therethrough, a cam shaft having a cam for each coin controlled device, means providing a driving connection between the meter and the cam shaft for rotat ing the cam shaft by the meter, means operable by the cams for causing the coin controlled device utilized to produce a discontinuance of flow after a predetermined quantity of gasoline has passed through, and means for returning the cam shaft to its start ing position, the cams on the cam shaft being rotatably adjustable to compensate for vary ing market prices of gasoline.

7. A gasoline dispensing pump comprising a conduit having a meter therein, coin controlled means for starting and stopping flow through the conduit, a cam shaft, means for driving the cam shaft by the meter, and means operable by the cam shaft for causing trolled means, the cams on the cam shaft being operable to cause the coin controlled device utilized to release its coin and discontinue flow through the conduit.

9. A gasoline dispensing pump comprising a conduit having a meter therein, coin controlled means for startingand stopping flow through the conduit, a cam shaft, means for driving the cam shaft by meter, means operable by the cam shaft for causing thecoin controlled means to release its coin and discontinue flow through the conduit, and means for returning the cam shaft to its starting position upon release of the coin.

10. A gasoline dispensing pump having a conduit with a meter therein, a plurality of coin controlled means each of which is operable for starting and stopping flow through the conduit, a cam shaft, means for driving the cam shaft by the meter; there being a cam on the cam shaft" for each coin controlled means, the cams on the cam shaft being operable to cause the coin controlled device utilized to release its coin and discontinue flow through the conduit, and means for returning the cam shaft to its starting position upon release of the coin.

In testimony whereof I have signed my name to this specification.

ARTHUR C. SMITH. 

